细胞分裂

In this species, the first division of zygote produces two equal hemispheric cells by the first partition wall at the right angles to the axis of the archegonium.

合子的第一次分裂面垂直于颈卵器的长轴，产生两个相等的子细胞，靠近颈卵器颈部的营养器官原始细胞和远离颈部的基足原始细胞。

Before xylem mother cells reactivated completely , the dividing fusiform cells in cambium and new phloem cells ha .

在木质部母细胞完全恢复活动之前，形成层纺锤状原始细胞的分裂和韧皮部细胞的分化已经开始。

Before xylem mother cells reactivated completely, the dividing fusiform cells in cambium and new phloem cells had appeared at the same time.

在木质部母细胞完全恢复活动之前，形成层纺锤状原始细胞的分裂和韧皮部细胞的分化已经开始。

The results showed that PCD was initiated in the tapetal, chalice, and connective cells during tetrad stage after mitosis of the anther tissue cells; however, anther vascular tissues underwent PCD during microspore mother cell stage.

结果表明绒毡层、环形细胞、药隔组织细胞在减数分裂后四分体时期开始出现PCD，而花药维管束细胞从小孢子母细胞时期就开始出现PCD。

According to anther abortion characteristics and hormone functions, it was suggested that IAA, GA3 and ZR deficiency might be associated respectively with the inhibition of starch grain accumulation, pollen mother cell and tapetal cell expansion and tetrad formtion, and that abortion and even death of pollen mother cells and tapetal cells in sterile anther might be accelerated by high ABA accumulation.

根据内源激素的功能推测，不育花药IAA含量过低使花药淀粉积累受阻，GA_3含量不足影响花粉母细胞和绒毡层细胞的膨大，过低的ZR含量使花粉母细胞不能分裂形成四分体，过高的ABA含量促进花粉母细胞退化和死亡。

The cytoplasm of the tapetum cells of Zhenshan 97A deposited a few Ca(superscript 2+) precipitates at the pollen mother cell stage. At the meiosis stage, there were many large Ca(superscript 2+) precipitates at the inner longitudinal cell wall; there were a layer Ca(superscript 2+) precipitates around the tapetal cells.

珍汕97A绒毡层细胞从花粉母细胞时期开始，细胞质内有少量颗粒状的Ca(上标 2+)沉淀；减数分裂时期，绒毡层细胞的内切向壁表面有大量大颗粒的Ca(上标 2+)沉淀；单核花粉时期绒毡层细胞周围集聚一层Ca(上标 2+)沉淀。

Results Basal cell adenocarcinoma of prostate was composed of poorly differentiated solid carcinoma nests with many cellular nuclear mitoses arranged like basal cell carcinoma. Necrosis was in the middle of the carcinoma nest. Local differentiation to squamous cell, transitional cell and gland and structure like adenoid cystic carcinoma were found.

结果：前列腺基底细胞腺癌为分化差的实体癌呈基底细胞癌样排列，核分裂象多，癌巢中央伴坏死，可见局灶性鳞状细胞、移行细胞或腺管分化，也可出现腺样囊性癌样结构。

Cyclin B1 protein was expressed in mitotic spermatogonia and meiotic spermatocytes and was observed predominantly in round and elongated spermatids.

Cycln B1蛋白在进入分裂期的精原细胞和精母细胞中表达；在圆形精子细胞和伸长的精子细胞中呈现大量的cyclin B1蛋白。

The topics in this lab course include the following areas: Microscope and cell morphology, Cell Physiology, Enzymes, Mitosis and meiosis, Cellular respiration, Photosynthesis, Mendelian genetics, Prokaryotes, Protists, Fungi and lower Plants.

本学期课程包含显微镜介绍、各种动、植物细胞形态及构造、细胞生理现象、酵素反应、细胞有丝及减数分裂、遗传性状、细胞呼吸作用、光合作用、原核生物形态、原生生物形态、真菌形态及苔藓植物形态。

One of these "daughter" cells is a new sperm producing cell, whilst the other cell further divides to form two new cells, each with only one member of each chromosome pair. As the unfertilised egg also contains only one member of each chromosome pair, the act of fertilisation re-institutes an embryo with 46 chromosomes.

之一，这些&女儿&细胞是一种新的精子产生细胞，而其他细胞的进一步分裂，形成两个新的细胞，每个只有一个成员，每一个染色体的配对，由於unfertilised鸡蛋也只包含一个成员，每一个染色体的配对，该法的受精重新研究所胚胎与46染色体。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。